I got this thing in my old sleepers truck. When i bought the truck the guy told me over drive was screwed up. Well i finally got it to kick in to od last night. But once it kickes in i got to do about 60 or so to wherer the motor is tached play with the throttle a little and it will shift. Does anyone no what could be wrong

 

possibly the tps. Do you have the poteitometer?

 

The TPS needs adjusting. There is a how to do it, I think it is in the Sticky.